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| author | Chuanqi Xu <yedeng.yd@linux.alibaba.com> | 2024-07-02 13:55:26 +0800 |
|---|---|---|
| committer | Chuanqi Xu <yedeng.yd@linux.alibaba.com> | 2024-07-02 13:55:30 +0800 |
| commit | 7ee421d29612ae919edfe7250b87e3c738d66a26 (patch) | |
| tree | b0762dc98cf76cf974ebfbd3a86811bb9b94ed36 /clang/lib | |
| parent | 91c0ef6f67821eb7298cb05988045e92354ac77b (diff) | |
| download | llvm-7ee421d29612ae919edfe7250b87e3c738d66a26.zip llvm-7ee421d29612ae919edfe7250b87e3c738d66a26.tar.gz llvm-7ee421d29612ae919edfe7250b87e3c738d66a26.tar.bz2 | |
[C++20] [Modules] Skip calls to module initializer to modules if we know the module doesn't init anything
Close https://github.com/llvm/llvm-project/issues/97244
This is an optimization allowed by the modules's ABI to skip calls to
imported modules for which we know nothing will be initialized.
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/CGDeclCXX.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGDeclCXX.cpp b/clang/lib/CodeGen/CGDeclCXX.cpp index e18b339..05dd7dd 100644 --- a/clang/lib/CodeGen/CGDeclCXX.cpp +++ b/clang/lib/CodeGen/CGDeclCXX.cpp @@ -840,6 +840,10 @@ CodeGenModule::EmitCXXGlobalInitFunc() { // No Itanium initializer in header like modules. if (M->isHeaderLikeModule()) continue; + // We're allowed to skip the initialization if we are sure it doesn't + // do any thing. + if (!M->isNamedModuleInterfaceHasInit()) + continue; llvm::FunctionType *FTy = llvm::FunctionType::get(VoidTy, false); SmallString<256> FnName; { |